CN201655620U - Film light guide keyboard device - Google Patents
Film light guide keyboard device Download PDFInfo
- Publication number
- CN201655620U CN201655620U CN2010201702013U CN201020170201U CN201655620U CN 201655620 U CN201655620 U CN 201655620U CN 2010201702013 U CN2010201702013 U CN 2010201702013U CN 201020170201 U CN201020170201 U CN 201020170201U CN 201655620 U CN201655620 U CN 201655620U
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- Prior art keywords
- light
- film
- key
- circuit
- keyboard
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 239000010409 thin film Substances 0.000 claims description 36
- 239000010408 film Substances 0.000 claims description 33
- 239000012528 membrane Substances 0.000 claims description 28
- 238000009413 insulation Methods 0.000 claims description 8
- 229920003023 plastic Polymers 0.000 claims description 5
- 125000006850 spacer group Chemical group 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 10
- 238000003491 array Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
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- Input From Keyboards Or The Like (AREA)
- Push-Button Switches (AREA)
Abstract
The utility model discloses a film light guide keyboard device which leads the whole nonopaque keyboard to have even transmitting effect. For the device, a light guide film is assembled in a thin keyboard device; the end edge of a thin circuit board is correspondingly assembled with a plurality of light-emitting diodes LED; the positions on the light guide film, corresponding to the plurality of keys of the keyboard, are distributed with a plurality of key reflective areas; the bottom surface of each reflective area is assembled with a plurality of ring depressions with different depths and density; and the depths of all the ring depressions are gradually and proportionally increased from shallow to deep according to the distances with the light-emitting diodes LED light sources.
Description
Technical Field
The present invention relates to a light guiding membrane keyboard device, and more particularly to an invention for assembling a light guiding membrane in a thin keyboard device.
Background
The notebook computer has the functions of conveniently carrying and processing document data and real-time communication, and is widely acknowledged and adopted by consumers, keys of the existing notebook computer keyboard adopt thin key structures, and a common notebook computer keyboard is mainly characterized in that a bridging type supporting structure is assembled and connected between a key cap and a bottom plate of a character key, the thin bridging type keyboard structure has the advantages of ultrathin volume, light weight and accurate operation, but the keyboard cannot provide a light-transmitting structure design for auxiliary illumination, so that the keyboard can only be operated in a place with bright light, but cannot be operated in a dark place, the use is often limited, and the applicant company develops and applies for approval: the patent of light guide plate and backlight module (number of patent certificate of this country: M306689) for luminous keyboard is mainly characterized by that on the light guide plate a fastening structure is set, and is favourable for directly assembling bridge component, and it has no design of making reinforced light-conducting for individual key-press and LED light source spacing, so that the key-press far from LED light source is obvious in light-transmitting brightness, and its operation is not convenient.
SUMMERY OF THE UTILITY MODEL
The utility model provides a film leaded light keyboard device to make whole printing opacity keyboard have even printing opacity effect.
To achieve the above objects, the present invention provides a thin film light guiding keyboard device, wherein a light guiding membrane is assembled in a keyboard, and the keyboard is integrally assembled on a bottom plate by a plurality of bridges, a plurality of transparent keycaps, a plurality of elastic components, a key frame plate, a thin film circuit board, a spacing insulation plate, and a light guiding membrane; wherein,
the thin film circuit board is formed with a circuit for controlling key input signals on a transparent thin film plate, a circuit breaking point and a conductive contact end of the circuit are respectively formed at the position of the thin film circuit board corresponding to the transparent keycap, and a plurality of light emitting diode light sources are electrically connected with the bottom end edge of the thin film circuit board;
the interval insulating board is a light-transmitting plastic soft board arranged on the lower layer of the thin-film circuit board, and the board surface of the interval insulating board corresponds to the position of the open circuit point of each circuit so as to respectively penetrate through the open circuit point to form opposite interval through holes;
the light guide diaphragm is a film light guide component arranged on the lower layer of the interval insulating plate, a plurality of key reflection areas are distributed on the light guide diaphragm corresponding to a plurality of key positions of the keyboard, a plurality of ring recesses with different depths and densities are respectively distributed on the bottom surface of each reflection area in an array mode, the depth of each ring recess is increased progressively from shallow to deep according to the distance between the ring recess and the LED light source of the light-emitting diode, circuit guide points are respectively coated on the central position of the top surface of each key reflection area correspondingly, and each guide point is arranged corresponding to each interval through hole and the open circuit point of each circuit up and down.
In order to achieve the above object, the present invention further provides a thin film light guiding keyboard device, wherein a light guiding membrane is assembled in a keyboard, and the keyboard is integrally assembled on a bottom plate by a plurality of bridges, a plurality of light transmitting keycaps, a plurality of elastic components, a key frame plate, a thin film circuit board, a spacing insulation plate, and a light guiding membrane; wherein,
the thin film circuit board is formed with a circuit for controlling the key input signal on a transparent thin film plate, and a circuit breaking point and a conductive contact end of the circuit are respectively formed at the position of the thin film circuit board corresponding to the transparent keycap;
the interval insulating board is a light-transmitting plastic soft board arranged on the lower layer of the thin-film circuit board, and the board surface of the interval insulating board corresponds to the position of the open circuit point of each circuit so as to respectively penetrate through the open circuit point to form opposite interval through holes;
the light guide membrane is a film-shaped light guide assembly arranged on the lower layer of the interval insulating plate, a plurality of key reflection areas are distributed on the light guide membrane corresponding to a plurality of key positions of the keyboard, the bottom surfaces of the reflection areas are respectively coated and printed with a plurality of array-shaped reflection sheets, the array-shaped reflection sheets are respectively provided with different distribution densities, the central positions of the top surfaces of the key reflection areas are respectively coated with guide points correspondingly, and the guide points are arranged up and down corresponding to the interval through holes and the break points of the circuits;
the bottom plate is arranged on the bottom surface of the light guide film, and the plurality of light emitting diode LEDs are arranged on the bottom plate.
The utility model provides a film leaded light keyboard device through the structural design of the long-range light reflection luminance of reinforcement, reaches that whole printing opacity keyboard has even printing opacity effect.
Drawings
Fig. 1 is a three-dimensional exploded view of the light guiding film keyboard device of the present invention, which shows the application of the light guiding film to the keyboard of a computer.
Fig. 2 is a partially enlarged exploded perspective view of the light guiding membrane keyboard device of the present invention, which shows the assembly structure of a single key.
Fig. 3 is a schematic sectional view of the single key assembly of fig. 2.
Fig. 4 is a partial top view of the light guiding membrane of the light guiding keyboard assembly of the present invention.
Fig. 5 is a schematic view of the usage state of fig. 2, which shows the pressing state of a single key.
Fig. 6 is a partially enlarged exploded perspective view of another embodiment of the light guiding membrane keyboard apparatus of the present invention, which shows an assembled structure of a single key.
Fig. 7 is a schematic sectional view of the single key assembly of fig. 6.
Fig. 8 is a partial top view of a light guiding membrane of another embodiment of a thin film light guiding keyboard apparatus of the present invention.
Detailed Description
The following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings.
Referring to fig. 1 to 5, in the first embodiment, a light guiding film 30 is assembled in a bridge keyboard 10; the keyboard 1 is integrally assembled on a bottom plate 40 by a plurality of bridges 11, a plurality of transparent keycaps 12, a plurality of transparent elastic components 15, a key frame plate 13, a thin film circuit board 20, an interval insulation plate 25 and a light guide membrane 30.
The transparent keycap 12 is a transparent pressing component with a square shape, two symmetrical pivot slots 121 and two sliding slots 122 are formed on the bottom surface of the keycap 12, and a pressing portion 125 is formed at the central position thereof, the two pivot slots 121 and the two sliding slots 122 are correspondingly pivoted on the pivot 111 and the two sliding shafts 112 at the top edge of the bridge 11, the two sliding shafts 113 and the pivot 114 at the bottom edge of the bridge 11 are correspondingly pivoted in the two sliding slots 133 and the receiving slots 134 on the key frame plate 13, the transparent elastic component 15 is pressed on the pressing portion 125 at the bottom surface of the transparent keycap 12, wherein the plurality of elastic components 15 are correspondingly fixed on a gasket 14, and a plurality of through holes 141 are arranged on the gasket 14, so that the gasket 14 can be assembled on the top surface of the key frame plate 13, and the elastic component 15 is correspondingly arranged on the through holes 131 of the key frame plate 13 and the top surface of the thin film circuit board 20, therefore, the pressing column 151 in the hollow elastic element 15 can be pressed downwards to touch and conduct the thin film circuit board 20.
The thin film circuit board 20 is a transparent thin film board formed with a plurality of circuits for controlling key input signals, the thin film circuit board 20 is formed with a circuit breaking point 21 corresponding to the central point of the transparent keycap 12, and two ends of the circuit breaking point 21 are formed with corresponding conductive contact ends, and the bottom end edge of the thin film circuit board 20 is electrically connected with a plurality of light emitting diode LED 23 light sources at proper positions to provide the light guiding efficiency of the keyboard.
The spacing insulation board 25 is assembled on the lower layer of the thin film circuit board 20, and is a transparent plastic soft board with insulation effect, the board surface of the board corresponds to the position of the breaking point 21 of each circuit to respectively penetrate through and form the corresponding spacing through hole 26, the diameter of the circular hole of each spacing through hole 26 is larger than the area of the corresponding breaking point 21, and the periphery of each spacing through hole 26 of the spacing insulation board 25 is a grid-shaped lightproof shielding layer 27, so as to partially shield and reflect the light of the backlight source.
The light guide membrane 30, which belongs to a thin film made of transparent silica gel, is a thin film light guide assembly assembled between the spaced insulating plate 25 and the bottom plate 40, and utilizes the light source of the light emitting diode LED 23 to guide the light reflection to the position of the transparent keycap 12 at the top end, a plurality of key reflection areas 32, 33, 34, 35 are distributed on the light guide membrane 30 corresponding to the plurality of elastic assemblies 15, and each reflection area 32, 33, 34, 35 is correspondingly arranged according to the different distance between the light guide membrane and the light source of the light emitting diode LED 23, and a plurality of ring recesses 321, 331, 341, 351 with different depths are respectively distributed on the bottom surface of each reflection area 32, 33, 34, 35 in an array, namely, the plurality of array- shaped ring recesses 321, 331, 341, 351 have different depths and distribution densities, and can be properly adjusted to generate the same vertical reflection brightness according to the different distances between the light source and the light emitting diode LED 23, that is, the plurality of ring cavities 351 are far from the light source of the LED 23, so that the brightness of the horizontal projected light of the light source of the LED 23 is reduced, and therefore, the plurality of ring cavities 351 can be designed to have a deeper outer ring peripheral surface to increase the upward vertical reflected light brightness, and similarly, according to the relationship between the light brightness and the light source distance, the depth of each ring cavity 321, 331, 341, 351 is increased from shallow to deep according to the distance between the light brightness and the light source, so as to adjust and achieve the uniform vertical reflected light brightness of each key reflective area 32, 33, 34, 35, thereby improving the uniform light guiding effect of the whole keyboard light transmission; a flange 38 is disposed at the center of the bottom surface of each of the key reflection areas 32, 33, 34, 35 and protrudes downward, the flange 38 is vertically corresponding to the pressing column 151 of the elastic component 15, the center of the top surface of each of the key reflection areas 32, 33, 34, 35 is correspondingly coated with a conductive contact 31, and each conductive contact 31 is vertically corresponding to each of the spaced through holes 26 and the open circuit point 21 of each circuit.
When the transparent keycaps 12 and the pressing pillars 151 of the elastic component 15 are pressed (as shown in fig. 5), they can press the open-circuit points 21 on the thin-film circuit board 20 downward, and the open-circuit points 21 of the circuit correspondingly pass through the through holes 26 and contact with the contacts 31 on the light-guiding film 30, so as to conduct the pressing loop to achieve the effect of inputting the key signals.
The bottom plate 40 is a plate body for supporting the key frame plate 13, the thin film circuit board 20 and the light guide film 30, so as to assemble a complete keyboard key structure.
The main structural features and practical effects of the present embodiment are briefly described as follows: the light guiding film 30 of the present embodiment can be assembled in a bridge-type keyboard 10, and utilizes the LED light source to guide the light to the transparent keycap 12 by reflection, i.e. a plurality of key reflection areas are distributed on the light guiding film 30 to concentrate the light in the required direction, and each reflection area is respectively distributed with a plurality of ring recesses with different depths and densities in an array, and can adjust and generate the same and uniform vertical reflection brightness according to the different distances between the light guiding film and the LED light source, i.e. the depth of each ring recess increases from shallow to deep according to the distance between the light guiding film and the LED light source, thereby enhancing the uniform light guiding effect of the whole keyboard.
Referring to fig. 6 to 8, another embodiment of the present invention mainly includes assembling a light guiding film 50 between the insulating plate 25 and a bottom plate 60, and the LED 63 is assembled on the bottom plate 60 and passes through the through hole 511 of the light guiding film 50, and a plurality of key reflective areas 52, 53, 54, 55 are distributed on the light guiding film 50 corresponding to the plurality of elastic components 15, and each of the reflective areas 52, 53, 54, 55 is correspondingly arranged according to the different distances from the LED 63, and a plurality of arrays of reflective sheets 521, 531, 541, 551 are coated and printed on the bottom surface of each reflective area 52, 53, 54, 55, and the plurality of arrays of reflective sheets 521, 531, 541, 551 have different arrangement densities respectively, and can be properly adjusted to generate the same vertical reflective brightness according to the different distances from the LED 63, thereby improving the uniform light guide effect of the whole light-transmitting keyboard; the center of the top surface of each key reflection area 52, 53, 54, 55 is coated with a conductive contact 51, and each conductive contact 51 is disposed corresponding to each spacing through hole 26 and the open circuit point 21 of each circuit.
To sum up, the utility model relates to a film leaded light keyboard, it mainly is that the assembly has a leaded light diaphragm in slim bridging formula keyboard, and its structure design through reinforcement remote light reflection luminance reaches whole printing opacity keyboard and has even printing opacity effect.
The above is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.
Claims (10)
1. A membrane light guide keyboard device is characterized in that a light guide membrane is assembled in a keyboard, and the keyboard is integrally assembled on a bottom plate by a plurality of bridges, a plurality of light-transmitting keycaps, a plurality of elastic components, a key frame plate, a membrane circuit board, an interval insulation plate and the light guide membrane; wherein,
the thin film circuit board is formed with a circuit for controlling key input signals on a transparent thin film plate, a circuit breaking point and a conductive contact end of the circuit are respectively formed at the position of the thin film circuit board corresponding to the transparent keycap, and a plurality of light emitting diode light sources are electrically connected with the bottom end edge of the thin film circuit board;
the interval insulating board is a light-transmitting plastic soft board arranged on the lower layer of the thin-film circuit board, and the board surface of the interval insulating board corresponds to the position of the open circuit point of each circuit so as to respectively penetrate through the open circuit point to form opposite interval through holes;
the light guide diaphragm is a film light guide component arranged on the lower layer of the interval insulating plate, a plurality of key reflection areas are distributed on the light guide diaphragm corresponding to a plurality of key positions of the keyboard, a plurality of ring recesses with different depths and densities are respectively distributed on the bottom surface of each reflection area in an array mode, the depth of each ring recess is increased progressively from shallow to deep according to the distance between the ring recess and the LED light source of the light-emitting diode, circuit guide points are respectively coated on the central position of the top surface of each key reflection area correspondingly, and each guide point is arranged corresponding to each interval through hole and the open circuit point of each circuit up and down.
2. The membrane light-guiding keyboard apparatus of claim 1, wherein the diameter of the circular holes of the spacing through holes is larger than the area of the corresponding open circuit points, and the periphery of each spacing through hole of the spacing insulating plate is a light-tight shielding layer in a grid shape.
3. The film light-guiding keyboard apparatus of claim 1, wherein the key cap is a transparent pressing member, the key cap has a pivot slot and a guide slot for corresponding pivot and slide axis pivoted to the top edge of the bridge, the slide axis and pivot axis at the bottom edge of the bridge are correspondingly pivoted to the guide slot and receiving slot on the key frame plate, and the transparent elastic member is pressed against the pressing portion at the bottom of the key cap.
4. The film light-guiding keyboard apparatus of claim 3, wherein when the pressing pillars of the transparent keycaps and elastic members are pressed, they can press the open circuit points of the film circuit board downward, and the open circuit points of the circuit correspondingly pass through the spacing through holes downward to be in contact with the conductive contacts on the light-guiding film, so that the pressing loops are conducted to input the key signals.
5. The film light-guiding keyboard apparatus of claim 1, wherein the bottom plate is a plate supporting the key frame plate, the film circuit board, the spacer insulating plate and the light-guiding film.
6. A membrane light guide keyboard device is characterized in that a light guide membrane is assembled in a keyboard, and the keyboard is integrally assembled on a bottom plate by a plurality of bridges, a plurality of light-transmitting keycaps, a plurality of elastic components, a key frame plate, a membrane circuit board, an interval insulation plate and the light guide membrane; wherein,
the thin film circuit board is formed with a circuit for controlling the key input signal on a transparent thin film plate, and a circuit breaking point and a conductive contact end of the circuit are respectively formed at the position of the thin film circuit board corresponding to the transparent keycap;
the interval insulating board is a light-transmitting plastic soft board arranged on the lower layer of the thin-film circuit board, and the board surface of the interval insulating board corresponds to the position of the open circuit point of each circuit so as to respectively penetrate through the open circuit point to form opposite interval through holes;
the light guide membrane is a film-shaped light guide assembly arranged on the lower layer of the interval insulating plate, a plurality of key reflection areas are distributed on the light guide membrane corresponding to a plurality of key positions of the keyboard, the bottom surfaces of the reflection areas are respectively coated and printed with a plurality of array-shaped reflection sheets, the array-shaped reflection sheets are respectively provided with different distribution densities, the central positions of the top surfaces of the key reflection areas are respectively coated with guide points correspondingly, and the guide points are arranged up and down corresponding to the interval through holes and the break points of the circuits;
the bottom plate is arranged on the bottom surface of the light guide film, and the plurality of light emitting diode LEDs are arranged on the bottom plate.
7. The membrane light guide keyboard device according to claim 6, wherein the diameter of the circular hole of the spacing through hole is larger than the area of the corresponding open circuit point, and the periphery of each spacing through hole of the spacing insulating plate is a light-tight shielding layer in a grid shape.
8. The film light-guiding keyboard apparatus of claim 6, wherein the key cap is a transparent pressing member, the key cap has a pivot slot and a guide slot to correspond to the pivot and the slide shaft pivoted to the top edge of the bridge, the slide shaft and the pivot shaft at the bottom edge of the bridge are correspondingly pivoted to the guide slot and the receiving slot on the key frame plate, and the transparent elastic member is a pressing portion pressed against the bottom surface of the key cap.
9. The film light-guiding keyboard apparatus of claim 8, wherein the pressing pillars of the transparent keycaps and elastic members are pressed downward to press the open circuit points of the film circuit board, and the open circuit points of the circuit are made to pass through the spacing through holes downward to be in contact with the conductive contacts of the light-guiding film, so that the pressing loops are conducted to input the key signals.
10. The film light-guiding keyboard apparatus of claim 6, wherein the bottom plate is a plate supporting the key frame plate, the film circuit board, the spacer insulating plate and the light-guiding film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201702013U CN201655620U (en) | 2010-04-26 | 2010-04-26 | Film light guide keyboard device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201702013U CN201655620U (en) | 2010-04-26 | 2010-04-26 | Film light guide keyboard device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201655620U true CN201655620U (en) | 2010-11-24 |
Family
ID=43120864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201702013U Expired - Lifetime CN201655620U (en) | 2010-04-26 | 2010-04-26 | Film light guide keyboard device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201655620U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102394191A (en) * | 2011-02-25 | 2012-03-28 | 深圳市德众恒工业有限公司 | Keyboard and assembling method thereof |
| CN102543536A (en) * | 2012-01-11 | 2012-07-04 | 江苏传艺科技有限公司 | Structure of notebook computer keyboard |
| WO2014036784A1 (en) * | 2012-09-05 | 2014-03-13 | Yuan Jianjun | Luminescent keyboard |
| CN104795268A (en) * | 2014-01-16 | 2015-07-22 | 志康实业有限公司 | Structure for backlight modules |
| CN105224093A (en) * | 2015-10-19 | 2016-01-06 | 山东超越数控电子有限公司 | A kind of keyboard |
| US10347443B1 (en) | 2017-05-25 | 2019-07-09 | Apple Inc. | Illuminated keyboard structures |
-
2010
- 2010-04-26 CN CN2010201702013U patent/CN201655620U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102394191A (en) * | 2011-02-25 | 2012-03-28 | 深圳市德众恒工业有限公司 | Keyboard and assembling method thereof |
| CN102543536A (en) * | 2012-01-11 | 2012-07-04 | 江苏传艺科技有限公司 | Structure of notebook computer keyboard |
| WO2014036784A1 (en) * | 2012-09-05 | 2014-03-13 | Yuan Jianjun | Luminescent keyboard |
| CN104795268A (en) * | 2014-01-16 | 2015-07-22 | 志康实业有限公司 | Structure for backlight modules |
| CN105224093A (en) * | 2015-10-19 | 2016-01-06 | 山东超越数控电子有限公司 | A kind of keyboard |
| US10347443B1 (en) | 2017-05-25 | 2019-07-09 | Apple Inc. | Illuminated keyboard structures |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101124 |
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| CX01 | Expiry of patent term |